My wallet is in my pocket, it’s got some cash, my cards, a plaster in case someone gets a cut, a clothes pin in case a button fails, and a spare hayfever tablet.
How am I going to pay for things in person using my phone - which is mostly the point of a wallet - if my phone battery is dead, or I don’t have any data left for internet usage, or my phone crashes, or the app stops working, etc?
And why would I even have to pull my phone out at all, and risk it being snatched and stolen by a passing thief if I’ve got a perfectly functional debit card and cash in my actual wallet, which I don’t mind having stolen anywhere near as much…